cleanup macro usage

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

src/smt/theory_opt.h

@@ -0,0 +1,32 @@
+/*++
+Copyright (c) 2013 Microsoft Corporation
+
+Module Name:
+
+    theory_opt.h
+
+Abstract:
+
+    Interface utilities used by optimization providing 
+    theory solvers.
+
+Author:
+
+    Nikolaj Bjorner (nbjorner) 2013-10-18
+
+Notes:
+
+--*/
+
+#ifndef _THEORY_OPT_H_
+#define _THEORY_OPT_H_
+
+namespace smt {
+    class theory_opt {
+    public:
+        virtual bool max_min(theory_var v, bool max) { UNREACHABLE(); return false; };
+        virtual theory_var add_objective(app* term) { UNREACHABLE(); return null_theory_var; }
+    };
+}
+
+#endif